Process for recovering pyrochlore mineral containing niobium and

Details Process for recovering pyrochlore mineral containing niobium and Process for recovering pyrochlore mineral containing niobium and

1983-07-06

1985-01-15

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vb metal

423 65, 423 68, 75 2, B01D 1100

Patent

active

044938179

ABSTRACT:
Niobium and tantalum containing pyrochlore is recovered from high silicate gangue content ore with good selectivity and yield employing collectors of formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently 8 to 16 carbon straight or branched chain alkyl groups, at pH 1.5 to 6.5.

REFERENCES:
patent: 2494283 (1950-10-01), Cassaday et al.
patent: 2725394 (1955-11-01), Zenftman et al.
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patent: 2957931 (1960-10-01), Hamilton et al.
patent: 2961457 (1960-11-01), Pohlemann et al.
patent: 2969378 (1961-01-01), Gleim et al.
patent: 2990420 (1961-06-01), Gleim et al.
patent: 3014585 (1961-12-01), Noblitt
patent: 3947542 (1976-03-01), Charlot
Hoechst Aktiengesellschaft "Preliminary Instruction Sheet Collector HOE F 1415 for the Flotation of Non-Sulphide Minerals" Jun. 1981, 6 pages.
Hoechst Aktiengesellschaft "HOE F 2711", 2 pages, 10/77.

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